I will be adding working around policy to apparmor-easyprof-ubuntu, but
we want to remove this.
** Also affects: qtbase-opensource-src (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- QAudioRecorder does not work properly under 'microphone' security policy
+ confined applications need access to /run/shm/shmfd*
** Changed in: qtmultimedia-opensource-src (Ubuntu)
Status: Triaged => New
** Changed in: qtmultimedia-opensource-src (Ubuntu)
Importance: Medium => Undecided
** Changed in: qtbase-opensource-src (Ubuntu)
Importance: Undecided => High
** Changed in: apparmor-easyprof-ubuntu (Ubuntu)
Status: Fix Released => In Progress
** Description changed:
- QAudioRecoder currently needs the following rules:
+ QAudioRecoder needed the following rules:
owner /{run,dev}/shm/shmfd* rwk,
+
+ but then it was discovered that confined apps on utopic also need:
+ owner /{run,dev}/shm/shmfd* rwk,
The rules are this way because the shared memory files are not app
specific and is possible for one app to access another app's shared
- memory file. Please update qtmultimedia-opensource-src so the files are
- app-specific to better isolation the apps (this is something we are
- doing elsewhere).
+ memory file. Please update qtbase-opensource-src so the files are app-
+ specific to better isolation the apps (this is something we are doing
+ elsewhere).
Longer term we'd like to have shared memory file mediation in AppArmor.
Original report:
I recently wrote a small application[1] to spot an ancient issue I had using
QAudioRecorder on Ubuntu devices.
After I have installer gstreamer0.10-pulseaudio (otherwise "pulseaudio:" is
not listed as available source), I tried to start a record through
QAudioRecorder but it failed, giving me this output:
"shm_open() failed: Permission denied"
I've checked for some denials from apparmor (using 'dmesg | grep DEN'),
but none was found.
If I change the apparmor profile[2], so that my test application is
launched in a unconfined environment, QAudioRecorder works properly as
expected.
I run this test on my Nexus 5 (utopic-devel-proposed #185), but this
problem with shm happens also on i386 ubuntu-emulator (utopic-devel
#206).
Just for reference, this is the link to the original mail, stored in the
ubuntu-phone team mailing list archive:
http://lists.launchpad.net/ubuntu-phone/msg09842.html
[1] -
http://bazaar.launchpad.net/~verzegnassi-stefano/+junk/recorder-test/files
[2]
{
"policy_version": 1.2,
"template": "unconfined",
"policy_groups": []
}
** Changed in: apparmor-easyprof-ubuntu (Ubuntu)
Importance: Undecided => Critical
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to apparmor in Ubuntu.
https://bugs.launchpad.net/bugs/1370218
Title:
confined applications need access to /run/shm/shmfd*
Status in “apparmor” package in Ubuntu:
Triaged
Status in “apparmor-easyprof-ubuntu” package in Ubuntu:
In Progress
Status in “qtbase-opensource-src” package in Ubuntu:
New
Status in “qtmultimedia-opensource-src” package in Ubuntu:
New
Bug description:
QAudioRecoder needed the following rules:
owner /{run,dev}/shm/shmfd* rwk,
but then it was discovered that confined apps on utopic also need:
owner /{run,dev}/shm/shmfd* rwk,
The rules are this way because the shared memory files are not app
specific and is possible for one app to access another app's shared
memory file. Please update qtbase-opensource-src so the files are app-
specific to better isolation the apps (this is something we are doing
elsewhere).
Longer term we'd like to have shared memory file mediation in
AppArmor.
Original report:
I recently wrote a small application[1] to spot an ancient issue I had using
QAudioRecorder on Ubuntu devices.
After I have installer gstreamer0.10-pulseaudio (otherwise "pulseaudio:" is
not listed as available source), I tried to start a record through
QAudioRecorder but it failed, giving me this output:
"shm_open() failed: Permission denied"
I've checked for some denials from apparmor (using 'dmesg | grep
DEN'), but none was found.
If I change the apparmor profile[2], so that my test application is
launched in a unconfined environment, QAudioRecorder works properly as
expected.
I run this test on my Nexus 5 (utopic-devel-proposed #185), but this
problem with shm happens also on i386 ubuntu-emulator (utopic-devel
#206).
Just for reference, this is the link to the original mail, stored in the
ubuntu-phone team mailing list archive:
http://lists.launchpad.net/ubuntu-phone/msg09842.html
[1] -
http://bazaar.launchpad.net/~verzegnassi-stefano/+junk/recorder-test/files
[2]
{
"policy_version": 1.2,
"template": "unconfined",
"policy_groups": []
}
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1370218/+subscriptions
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